0.28.x into master

CHANGELOG.md

@@ -49,6 +49,12 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 * Fix quoted string bug while inserting array of strings to Postgres https://github.com/SeaQL/sea-query/pull/576
 * `ALTER TABLE` now panic if has multiple column for Sqlite https://github.com/SeaQL/sea-query/pull/595
 
+## 0.28.4 - Pending
+
+### Bug fixes
+
+* Added comma if multiple names are passed to `TypeDropStatement` https://github.com/SeaQL/sea-query/pull/623
+
 ## 0.28.3 - 2023-01-18
 
 ### Enhancements
@@ -68,10 +74,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Bug fixes
 
-* Fixed Postgres `GEN_RANDOM_UUID` https://github.com/SeaQL/sea-query/issues/568
-  - `PgFunction::GetRandomUUID` -> `PgFunction::GenRandomUUID`
-  - `PgFunc::get_random_uuid` -> `PgFunc::gen_random_uuid`
-
+* Fixes Postgres `GEN_RANDOM_UUID` https://github.com/SeaQL/sea-query/issues/568
+
 ## 0.28.0 - 2022-12-09
 
 ### New Features

src/backend/postgres/types.rs

@@ -35,9 +35,13 @@ impl TypeBuilder for PostgresQueryBuilder {
             write!(sql, "IF EXISTS ").unwrap();
         }
 
-        for name in drop.names.iter() {
+        drop.names.iter().fold(true, |first, name| {
+            if !first {
+                write!(sql, ", ").unwrap();
+            }
             self.prepare_type_ref(name, sql);
-        }
+            false
+        });
 
         if let Some(option) = &drop.option {
             write!(sql, " ").unwrap();

src/extension/postgres/types.rs

@@ -245,6 +245,39 @@ impl TypeDropStatement {
         self
     }
 
+    /// Drop multiple types
+    ///
+    /// ```
+    /// use sea_query::{extension::postgres::Type, *};
+    ///
+    /// #[derive(Iden)]
+    /// enum KycStatus {
+    ///     #[iden = "kyc_status"]
+    ///     Type,
+    ///     Pending,
+    ///     Approved,
+    /// }
+    ///
+    /// #[derive(Iden)]
+    /// enum FontFamily {
+    ///     #[iden = "font_family"]
+    ///     Type,
+    ///     Aerial,
+    ///     Forte,
+    /// }
+    ///
+    /// assert_eq!(
+    ///     Type::drop()
+    ///         .if_exists()
+    ///         .names([
+    ///             SeaRc::new(KycStatus::Type) as DynIden,
+    ///             SeaRc::new(FontFamily::Type) as DynIden,
+    ///         ])
+    ///         .cascade()
+    ///         .to_string(PostgresQueryBuilder),
+    ///     r#"DROP TYPE IF EXISTS "kyc_status", "font_family" CASCADE"#
+    /// );
+    /// ```
     pub fn names<T, I>(&mut self, names: I) -> &mut Self
     where
         T: IntoTypeRef,